M a x schobning



(No ModeL) H. SGHOENING.

APPARATUS FOR TAKING SOUNDINGS.

No. 327,726. Patented Oct. 6, 1885.

DTVENTOR ww WITNESSES ATTORNEYS.

N PETERSv Phuto-Lilhugraphor. Washingmn, 0,0.

Unirnn STATES PATENT OFFICE.

HERMAN SCHOENING, OF ANTXVERP, BELGIUM.

APPARATUS FOR TAKING SOUNDINGS.

SPECIFICATION forming part; of Letters Patent No. 327.726, dated October 6, 1885.

Application filed April 4, 1885. Serial No. 161,196. (No model.)

To ctZZ whom it may concern.-

Be it known that I, HERMAN ScnoENING, a resident ofAntwerp, Belgium, haveinvented a new and Improved Apparatus for Taking Soundings, of which the following is a full, clear, and exact description.

Reference is to be had to the accompanying drawings, forming a part of this specification, in which similar letters of reference indicate corresponding parts in all the figures.

Figure 1 is a side elevation of my improvement shown as arranged for use. Fig. 2 is a side elevation of the improvement. Fig.3 is a side elevation of the same, the case being shown in section. Fig. 4 is a sectional side elevation of the inner part of the same, the hinged portion being shown swung back. Fig. 5 is a sectional plan view of the inner part of the same taken through the line at 00, Fig. 4. Fig. 6 is a sectional plan view of the inner part of the same taken through the line 3 y, Fig. 4. Fig. 7 represents the strip of paper inclosed within the inner part of the appara tus.

The object of this invention is to provide an improved apparatus for taking soundings which shall be simple and inexpensive in 0011- struction, not liable to get out of order, and convenient and reliable in use.

The invention relates to the construction and combination of the various parts of the apparatus, as will be hereinafter described, and then pointed out in the claims.

A represents a case of any convenient length and size, and which is preferably made of metal. The case A can be made cylindrical, or of any other desired shape. The upper end of the case A is closed air-tight, and its open lower end has a screw-thread in its outer surface to receive the interior screw-thread of a cap-nut, B, screwed upon the said lower end. The cap-nut B has a center opening to allow water to pass into the case A freely.

Into the case A is fitted a rod, 0, in one side of which is formed a groove, D, extending from its lower end nearly to its upper end, as shown in Figs. 3 and 4.

The upper part of the rod 0 is made with a movable section, E, the plane of division being in line with the bottom of the groove D, and which is hinged at its lower end to the solid lower part of the said rod 0, as shown in Fig. 4, to allow its upper end to be swung back for convenience in inserting a strip, F, of paper or other suitable material between the parts of the rod, as shown in Fig. 4.

The strip F may be chemically prepared or marked with an aniline pencil, so that it will change its color when wet with sea-water, and thus show distinctly to what point it has been wet; or the paper can be used in its natural state, as the point to which water may have risen upon it will be shown by the difference in appearance between the wet and the'dry portions of the said strip F. The strip F should be treated with glue or other sizing,to prevent the water from being carried above the line of immersion by capillary attraction.

The strip F can be kept from slipping out of place while being placed in the space be tween the parts of the rod 0 by a pin, G, attached to the stationary part of the rod 0, and upon which the said strip is placed, as shown in Fig. 4.

With this construction,when the apparatus is lowered into the water, open end downward, the water will enter through the opening in the cap-nut B, and will rise in the groove D, compressing the air in the said groove to a greater or less extent, and rising to a greater or less height in exact proportion to the depth to which the apparatus is lowered, and the consequent pressure encountered.

Upon the rod C, or upon the paper F, or upon both'rod and paper, is formed a scale of division-marks showing in fathoins or in feet the depth to which the apparatus must be lowered in the water to cause the pressure of the water to compress the air in the groove D to the various division-marks of the said scale, so that the depth of water found by sounding can be read at once from the scale by withdrawing the rod 0 from the case A.

In using the apparatus it is designed to secure the case A to the sounding-line H at a point a little above the lead I, as shown in Fi 1.

Ilpon the upper end of the case A is formed an eye, J, to receive the cord K, that secures the said upper end of the case A to the line H. The lower part of the case A is secured to the line H by a cord, L, passed around the said ease and secured to the said line.

If desired, the apparatus can be made heavy 10 adapt it to serve as a lead; but I prefer to use a separate lead, as first described.

Having thus described myinvention, I claim as new and desire to secure by Letters Patent 1. In an apparatus for taking soundings, the combination, with the case A, having an air-tight upper end, and at its lower end a screw-cap having a center opening, of the rod 0, having a longitudinal groove, D, and a hinged section at its upper part, and the strip F, to receive the water-mark, secured in place by the said hinged section, substantially as herein shown and described.

2. In a sounding apparatus, the combination, with the tube A and perforated cap B, I 5 of the grooved rod 0, hinged section E, and the pin G, for the purpose set forth, substan tially as set forth.

HERMAN SOHOENING.

\Vitnesses:

JAMES T. GRAHAM, O. SEDGWIcK. 

